Pipe wrench



W. I.. BOCKOVER.

l PIPE WRENCH.

APPLICATION FILED SEPT. I5, ISZI.

1,407,691. l Patented Feb. 2s, 1922.

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To all whom it may camera:

UNITED s'rA'ras PATENT orifice.

wanrnn L. Bocxovnn, or rIProN', INDIANA, AssmNonoroNE-'rmnn 'ro JoirN w.noNmAna AND ONE-THIRD `To HENRY J., oNEILL, 'Berner TIrToN, INDIANA.

PIPE WRENCH.

Specication of Letters lhatent.

Patented Feb. 28, 1,922.

Be it known that I, WALTER L. Booxovnn,

a .citizen of the United States, residing at Tipton, in the county ofTipton and State of Indiana, have invented a new and useful- PipeWrench, of which the following is a specification.

This invention relates to tools, and more particularly to adjustablepipe 'wrenches, the primary object of the invention is to provide awrench which will 'be automatically adjusted to grip an article, whenpressure -is brought to bear on the handle thereof. Another objectof theinvention is to provide a wrench wherein the jaws will be forced intocloser gripping relation with the article under operation as thepressure .e on the handle portion of the tool is increased.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in -the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawing Figure 1 is a side elevational view of a wrenchconstructed in accordance with they present invention, a portion of thehandle eing broken away to illustrate the connection between the inner'aw and handle.

Figure 2 is a fragmental. rear elevational view of the wrench.

Referring to the drawing in detail, the reference-character 5 designatesthe handle portion of the wrench which has one end thereof bifurcated toprovide spaced arms 6, the outer ends thereof being offset as at 7 forpurposes to be hereinafter more fully described.

The spaced arms 6 provide a support forv the inner jaw 8 which ispositioned lbetween the arms ina manner to restrict lateral. movement ofthe jaw with respect to the handle, but permit of pivotal movement ofthe jaw.

This jaw 8 is provided with an elongated opening 9 'designed toaccommodate the pin 10, which extends through suitable openings providedin the arms 6 and provides the pivot'for the inner jaw 8. The outer jaw,

which is indicated 'at 11 embodies spaced u arms 12 which tioned betweent e offset-portion 7, of the arm 6, where -the same have pivotalconnectionwith the varm 6, as by means of the pivot pm 13.

The jaw 8 is also pivotally supported between thel arms 12 of the jaw11, as by means vof the pivot pin 1 4, so that as pressure is brought tobear on the handle 5 of the wrench', the jaw 8 may pivot or move toautomatically adjust itself into gripping relation with the 4article`under operation, which in the present drawing is in the form of a pipeindicated at 15.

From'the foregoing, it will be seen that due to the elongated opening 9and the conave their free endsA posi-A struction of the pin 10, the jaw8 will be permitted to move to a degree to adjust itself independentlyof the movement of the .handle5.

In the use of the device, the jaws are positioned around an article tobe removed, and pressure is brought to bear on the handle portion 5,causn the handle portion 5 to pivot at' 13 and move the jaw 8 into closeengagement with the article under operation.

.It is obvious that as the pressure on thel arms, the ends thereofhaving connection with the arms of the handle portion at the offsetportions thereof, the first mentioned jaw being pivotally supportedbetween the spaced armsfof the outer jaw, and teeth formed on the jaws.

In testimon that I claim 'the foregoing as own, havev hereto aixed mysignature in the presence of two witnesses.

WALTER L. BOCKOVER.'

`Witnesses: v

yCarni: C. BROWN, I ROBIN Amm.

